Margaret Preston（Australian, Western Australian gum blossom 1928 oil on canvas

Mystery bird: splendid fairywren, Malurus splendens

This is a Splendid Fairywren (also known as the Splendid Wren or Blue Wren), and it is native to Australia. They have many unique and unusual mating rituals, including one where the male will pluck petals and show them to the female.